Tides Today & Tomorrow in Nantucket, MA

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently falling in Nantucket, MA.
Next low tide : in 5h 23m at 6:00 pm (0.1 ft)
Next high tide (tomorrow) : 12:50 am (4.2 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 5:46 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8449130
Common Questions About Tides

Nantucket, MA Tides - Mar 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:413.54:212.89:44-0.29:490.36:145:31First Quarter1Sat
2Sun4:333.45:152.610:40-0.110:410.46:125:32First Quarter2Sun
3Mon5:263.36:112.411:370.111:340.56:115:33First Quarter3Mon
4Tue6:213.27:082.312:350.26:095:34First Quarter4Tue
5Wed7:183.18:052.312:290.61:360.36:085:35Waxing Gibbous5Wed
6Thu8:143.18:572.31:270.72:340.46:065:36Waxing Gibbous6Thu
7Fri9:053.19:432.42:230.63:220.36:045:37Waxing Gibbous7Fri
8Sat9:513.110:252.53:140.64:020.36:035:39Waxing Gibbous8Sat
9Sun10:363.111:052.64:000.54:380.36:015:40Waxing Gibbous9Sun
10Mon11:193.011:432.74:420.45:130.35:595:41Full Moon10Mon
11Tue12:013.05:230.35:460.25:585:42Full Moon11Tue
12Wed12:192.912:412.96:040.26:210.25:565:43Full Moon12Wed
13Thu12:543.01:212.96:450.06:560.25:555:44Waning Gibbous13Thu
14Fri1:303.22:022.87:27-0.17:330.35:535:45Waning Gibbous14Fri
15Sat2:073.32:452.78:12-0.18:140.35:515:46Waning Gibbous15Sat
16Sun2:493.43:332.69:01-0.29:000.35:495:48Waning Gibbous16Sun
17Mon3:383.54:262.59:54-0.29:520.35:485:49Third Quarter17Mon
18Tue4:333.55:232.410:51-0.110:480.35:465:50Third Quarter18Tue
19Wed5:333.66:232.411:49-0.111:470.25:445:51Third Quarter19Wed
20Thu6:363.67:272.512:50-0.15:435:52Third Quarter20Thu
21Fri7:413.68:292.712:520.21:52-0.25:415:53Waning Crescent21Fri
22Sat8:453.69:272.91:580.12:51-0.25:395:54Waning Crescent22Sat
23Sun9:453.610:213.23:02-0.13:44-0.35:385:55Waning Crescent23Sun
24Mon10:443.611:133.44:01-0.34:33-0.35:365:56New Moon24Mon
25Tue11:413.54:57-0.45:21-0.25:345:57New Moon25Tue
26Wed12:033.612:353.35:51-0.56:08-0.15:335:58New Moon26Wed
27Thu12:493.71:263.26:43-0.66:530.05:315:59Waxing Crescent27Thu
28Fri1:343.72:143.07:33-0.57:390.15:296:01Waxing Crescent28Fri
29Sat2:193.63:032.88:23-0.48:260.35:286:02Waxing Crescent29Sat
30Sun3:053.53:522.69:15-0.29:150.45:266:03Waxing Crescent30Sun
31Mon3:553.44:432.510:080.010:070.55:246:04First Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8449130)

Common Questions About Nantucket, MA Tides

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What time does the tide turn (slack tide) in Nantucket, MA today?

Slack tide in Nantucket, MA is approximately 9:25 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Nantucket, MA?

Nantucket, MA is currently in a spring phase. Tonight's moon is 0% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Nantucket, MA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Nantucket, MA?

Tide predictions for Nantucket, MA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Nantucket, MA?

Tide data for Nantucket, MA is sourced from NOAA Station #8449130. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8449130.

What is the moon phase in Nantucket, MA tonight?

Tonight the moon over Nantucket, MA is New Moon (0% illuminated). This places Nantucket, MA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA